Mechanical asymmetries in gastrocnemius stiffness: shear-wave elastography insights into the biomechanics and injury susceptibility of calf muscle strain injuries

Short summary

The medial gastrocnemius (MG) is stiffer than the lateral gastrocnemius (LG) at the muscle belly and MTJ, particularly in dorsiflexion, and exhibits a high-stiffness/low-compliance (HNC) profile at the MTJ, suggesting this behavior predisposes the MG to 'tennis leg' injuries.

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